package org.apache.cloudberry.pxf.plugins.hdfs.utilities;

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
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 */

import org.apache.hadoop.mapred.FileSplit;
import org.apache.cloudberry.pxf.api.OneField;
import org.apache.cloudberry.pxf.api.model.RequestContext;
import org.apache.cloudberry.pxf.plugins.hdfs.HcfsFragmentMetadata;
import org.junit.jupiter.api.Test;

import java.util.Arrays;
import java.util.Collections;
import java.util.List;

import static org.junit.jupiter.api.Assertions.assertEquals;

public class HdfsUtilitiesTest {

    @Test
    public void testToString() {
        List<OneField> oneFields = Arrays.asList(new OneField(1, "uno"), new OneField(2, "dos"), new OneField(3, "tres"));

        assertEquals("uno!dos!tres", HdfsUtilities.toString(oneFields, "!"));
        assertEquals("uno", HdfsUtilities.toString(Collections.singletonList(oneFields.get(0)), "!"));
        assertEquals("", HdfsUtilities.toString(Collections.emptyList(), "!"));
    }

    @Test
    public void testParseFileSplit() {
        RequestContext context = new RequestContext();
        context.setDataSource("/abc/path/to/data/source");
        context.setFragmentMetadata(new HcfsFragmentMetadata(10, 100));
        FileSplit fileSplit = HdfsUtilities.parseFileSplit(context.getDataSource(), context.getFragmentMetadata());
        assertEquals(fileSplit.getStart(), 10);
        assertEquals(fileSplit.getLength(), 100);
        assertEquals(fileSplit.getPath().toString(), "/abc/path/to/data/source");
    }
}
